Home / 1,025,734.20-1,538,885.70-426,977.40

Finding the Fourth Proportional to 1,025,734.20, 1,538,885.70 and 426,977.40

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Solution

The fourth proportional to 1,025,734.20, 1,538,885.70 and 426,977.40 is: 640,584.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,734.20 : 1,538,885.70 = 426,977.40 : x
  2. Step 2: Convert to fraction form
    1,025,734.20/1,538,885.70 = 426,977.40/x
  3. Step 3: Cross multiply
    1,025,734.20x = 1,538,885.70 × 426,977.40
  4. Step 4: Simplify right side
    1,025,734.20x = 657,069,415,083.18
  5. Step 5: Solve for x
    x = 657,069,415,083.18/1,025,734.20
  6. Step 6: Final answer
    x = 640,584.49

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.